@article{IM_1993__114_1_144158,
     author = {M.S. Narashimhan and T.R. Ramadas},
     title = {Factorisation of generalised theta functions. {I.}},
     journal = {Inventiones mathematicae},
     pages = {565--624},
     publisher = {mathdoc},
     volume = {114},
     number = {1},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM_1993__114_1_144158/}
}